//
//  AppDelegate.m
//  01-UIView、UIWindow
//
//  Created by QC.L on 16/7/14.
//  Copyright © 2016年 QC.L. All rights reserved.
//

#import "AppDelegate.h"
#import "ViewController.h"
#import "UIView+Frame.h"

@interface AppDelegate () <UITextFieldDelegate>

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    // 程序的组成结构
    // 1.main.m 主要实现了程序的正常运行
    // 2.AppDelegate 程序的执行者, 签订了UIAplicationDelegate(协议方法可选)
    // 注意: AppDelegate就是一个普通的类, 只不过签订协议, 才有了这么多方法
    // 3.ViewController 视图控制器 主要负责视图管理 看得见、摸得到的
    // 4.Main.sb(视图管理) LaunchScreen.sb(负责启动页) 可视化管理 (Xcode 7 以前 LaunchScreen.xib)
    // 5.Assets.xcassets 主要用来管理图片素材 (Xcode 7 以前叫 Images.xcassets)
    // 6.Info.plist (工程配置文件)
    
    // 模拟器
    // command + 1~5 改变 模拟器大小
    // command + ←/→ 横/竖屏切换
    
    // iOS概述
    // 正确的写法 iOS 错误的写法 IOS ios Ios IoS
    
    // 1.UIWindow (程序中, 只有一个主window)
    //  1> 取消程序的可视化入口, Main.sb
    //  2> 创建主window对象
    
    // 1.创建 主 window , 使其大小与屏幕一样
    // UIScreen 系统屏幕类
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    // 2.给你创建的窗口填颜色 UIColor 系统的颜色类
    _window.backgroundColor = [UIColor whiteColor];
    // 3.让window 成为主窗口 并 显示
    [_window makeKeyAndVisible];
    // 4.设置window的主窗口
    // Xcode 7 以后, 必须设置rootViewController, 否则, 在该方法结束时, 会崩溃
    _window.rootViewController = [[ViewController alloc] init];
    /*
    // 3> UIWindow 继承于 UIView
    
    // 2.UIView(与NSObject相似, 是UI阶段的根类, 大部分UI控件继承于UIView)
    // 学习新类
    //    1> 需要新类包含哪些初始方法
    //    2> 包含哪些行为(方法)和特征(属性)
    // 创建UIView
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 250, 250)];
    // 设置背景色
    view.backgroundColor = [UIColor greenColor];
    // 添加到window上
    [_window addSubview:view];
    // 遇到UIView的子类, 都可用以上方式创建和显示
    // UIView在屏幕中显示为矩形
    
    // iOS系统坐标系
    // 1.与数学中的坐标系不同, y的正方向是向下的
    // 2.原点是屏幕的左上角
    
    // frame bounds center(UIView的属性)
    // 1.frame (x, y, width, height) 视图在其父视图上的位置
    // 2.bounds (x, y, width, height) 视图本身的坐标系 (0, 0, width, height)
    // bounds x, y修改的本身的坐标系, 影响它的子视图
    // bounds width, height修改的是本身大小, 会以中心点收缩/扩张
    // bounds 的改变, 不会改变该视图的位置
    // 3.center 改变中心点(影响视图的位置)
    //   view.center = CGPointMake(50, 50);
    
    // bounds 对视图的影响测试
    // bounds 的 x, y 影响子视图的frame , 改变坐标系
    // CGRect 和 CGPoint

    NSLog(@"改变bounds前%@", NSStringFromCGRect(view.frame));
    NSLog(@"改变前的center %@", NSStringFromCGPoint(view.center));
    view.bounds = CGRectMake(0, 0, 300, 300);
    NSLog(@"改变bounds后%@", NSStringFromCGRect(view.frame));
    NSLog(@"改变后的center %@", NSStringFromCGPoint(view.center));

    
    UIView *subView = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 40, 40)];
    subView.backgroundColor = [UIColor yellowColor];
    [view addSubview:subView];
    
    // 改变绿色view的大小, width 变成 100
    view.frame = CGRectMake(view.frame.origin.x, view.frame.origin.y, 100, view.frame.size.height);
    // view.frame get方法
    // frame.size 结构体
    // OC和C的内容结合, 是一个常量
//    view.frame.size.width = 100;
    
     
    CGRect rect = view.frame;
    rect.size.width = 100;
    view.frame = rect;
    
    view.qc_width = 100;
    */
    
    // UIView的基本属性
    UIView *testView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    // 添加
    [_window addSubview:testView];
    // 移除
//    [testView removeFromSuperview];
    // 1.背景颜色
    testView.backgroundColor = [UIColor cyanColor];
    // 2.alpha 透明度 0.0 ~ 1.0 默认值 1.0
    testView.alpha = 0.2;
    // 3.tag 标记(编号) 默认为0
    testView.tag = 1000;
    // 根据tag获取到对应的view __kindof
    UIView *view1 = [_window viewWithTag:1000];
    // 4.subViews 子视图们
    UIView *arrayView = [_window.subviews objectAtIndex:0];
    NSLog(@"%@",arrayView);
    // 5.superView 父视图
    // testView.superview;
    // 6.hidden 隐藏/显示 YES/NO
    testView.hidden = YES;
    
    
    // 视图层级
    UIView *firstView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 80, 80)];
    firstView.backgroundColor = [UIColor orangeColor];
    UIView *secondView = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 80, 80)];
    secondView.backgroundColor = [UIColor greenColor];
    UIView *lastView = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 80, 80)];
    lastView.backgroundColor = [UIColor blackColor];
    // addSubview(添加视图)
    [_window addSubview:firstView];
    // insertSubview:atIndex:(插入视图, 到指定下标)
    NSLog(@"%@", _window.subviews);
    [_window insertSubview:secondView atIndex:2];
    // insertSubview:aboveSubview:(插入视图, 到指定视图之上)
    [_window insertSubview:lastView aboveSubview:secondView];
    // insertSubview:belowSubview:(插入视图, 到指定视图之下)
    [_window insertSubview:lastView belowSubview:secondView];
    
    // UILabel(负责显示文本)
    // 如果类没有自己的初始化方法, 则使用父类的
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 100, 300, 100)];
    label.backgroundColor = [UIColor yellowColor];
    [_window addSubview:label];
    
    // label的属性
    // 1.text 文本
    label.text = @"I'm a boy, go to work. I'm a boy, go to work. I'm a boy, go to work. I'm a boy, go to work";
    // 2.textColor 文本颜色
    label.textColor = [UIColor lightGrayColor];
    // 3.font 默认值 17
    label.font = [UIFont systemFontOfSize:40];
    label.font = [UIFont boldSystemFontOfSize:15];
    // 4.textAlignment 对齐方式 (默认对齐方式 NSTextAlignmentLeft)
    // left right center
    label.textAlignment = NSTextAlignmentCenter;
    // 5.numberOfLines 默认 为 1 行
    // 不确定行数时, 给 0
    label.numberOfLines = 1;
    // 6.lineBreakMode 换行模式, ...位置
    label.lineBreakMode = NSLineBreakByTruncatingMiddle;
    // 7.阴影 shadowColor
    label.shadowColor = [UIColor blackColor];
    label.shadowOffset = CGSizeMake(2, 1);
    
    // UIButton(用来点击的)
    // UIButtonTypeSystem 系统的按钮类型
    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    button.backgroundColor = [UIColor purpleColor];
    button.qc_x = 0;
    button.qc_y = 300;
    button.qc_width = 100;
    button.qc_height = 100;
//    [_window addSubview:button];
    // 给button添加事件
    [button addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpInside];
    // 给button添加文字
    [button setTitle:@"点我呀!" forState:UIControlStateNormal];
    // 修改button的文字颜色
    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    
    // UITextField
    UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];
//    textField.backgroundColor = [UIColor redColor];
    [_window addSubview:textField];
    // 1.text 给输入框赋了初值
//    textField.text = @"文字";
    // 2.textColor 文字颜色
    textField.textColor = [UIColor blackColor];
    // 3.borderStyle 边缘样式
    // UITextBorderStyleNone无
    // UITextBorderStyleLine 有边缘线
    // UITextBorderStyleBezel
    // UITextBorderStyleRoundedRect 边缘带圆角
    textField.borderStyle = UITextBorderStyleRoundedRect;
    // 4.placeholder 占位字符
    // 当text不为空时, placeholder是不显示的
    textField.placeholder = @"请输入您的爱好";
    // 5.clearsOnBeginEditing
    textField.clearsOnBeginEditing = YES;
    // command + K 收起/显示键盘
    textField.delegate = self;
    
    return YES;
}

- (void)buttonClicked {
    // 结束编辑
    [_window endEditing:YES];
    NSLog(@"我被点了");
}

// 开始编辑前, 判断能否进行编辑
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
    // return YES 可以编辑
    // return NO 不可以编辑
    return YES;
}

// 已经开始编辑时
- (void)textFieldDidBeginEditing:(UITextField *)textField {
    
}
// 判断是否结束编辑
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
    return YES;
}

// 已经结束编辑
- (void)textFieldDidEndEditing:(UITextField *)textField {
    
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    // 处理点击return, 需要进行的操作
    // 回收键盘
    [textField endEditing:YES];
    return YES;
}


- (void)applicationWillResignActive:(UIApplication *)application {
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application {
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

@end
